In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from DCA to KEF?

When flying from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Reagan-National to Keflavik Intl that include hotel bookings?

Yes. In addition to deals on Reagan-National to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Keflavik Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Keflavik Intl.

Can I find deals for business class flights from Reagan-National to Keflavik Intl?

Yes. Cheapflights offers flight deals from Reagan-National to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$370+ Cheap Flights from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport

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Cheap flight deals from Reagan-National to Keflavik Intl

Cheapest

Best

Last-minute

One-way

Cheapest flights from Reagan-National to Keflavik Intl
Explore the most affordable flight options available from Reagan-National to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.

Mon 9/2812:55 pm -

2 stops39h 00m

Mon 10/510:00 am -

2 stops30h 00m

Deal found 8/14

$478

Sun 10/1810:30 am -

1 stop18h 20m

Fri 10/239:15 am -

2 stops38h 54m

Deal found 8/15

$481

Wed 9/3011:00 am -

1 stop17h 45m

Wed 10/79:15 am -

2 stops29h 29m

Deal found 8/17

$484

Sun 8/236:00 am -

1 stop21h 55m

Tue 9/19:15 am -

1 stop10h 23m

Deal found 8/19

$485

Wed 10/146:55 pm -

1 stop9h 50m

Tue 10/2010:00 am -

2 stops32h 24m

Deal found 8/16

$489

Thu 9/246:00 am -

1 stop21h 55m

Wed 10/79:15 am -

1 stop10h 25m

Deal found 8/19

$493

Wed 8/195:10 pm -

1 stop11h 40m

Tue 8/259:15 am -

2 stops28h 31m

Deal found 8/18

$494

Wed 9/96:00 am -

1 stop21h 00m

Wed 9/169:15 am -

1 stop29h 05m

Deal found 8/19

$495

Thu 10/154:20 pm -

1 stop11h 35m

Mon 10/1910:00 am -

1 stop12h 15m

Deal found 8/15

$497

Thu 9/246:00 am -

1 stop21h 55m

Thu 10/112:00 pm -

1 stop12h 09m

Deal found 8/15

$499

Sun 9/137:46 am -

1 stop21h 04m

Thu 9/1710:00 am -

1 stop26h 55m

Deal found 8/18

$500

Best flights from Reagan-National to Keflavik Intl
Discover carefully curated flight deals from Reagan-National to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.

Fri 10/163:30 pm -

1 stop13h 20m

Tue 10/2010:00 am -

1 stop16h 34m

Deal found 8/16

$499

Sun 9/136:30 am -

1 stop22h 20m

Thu 9/1710:00 am -

2 stops30h 14m

Deal found 8/18

$500

Sun 11/89:30 am -

1 stop19h 30m

Sat 11/1412:00 pm -

1 stop11h 15m

Deal found 8/18

$501

Sun 11/89:30 am -

1 stop19h 30m

Mon 11/1612:00 pm -

1 stop11h 15m

Deal found 8/18

$501

Fri 11/136:06 pm -

1 stop10h 54m

Mon 11/1612:00 pm -

1 stop12h 15m

Deal found 8/14

$501

Fri 9/256:59 am -

1 stop21h 46m

Mon 10/512:00 pm -

1 stop11h 09m

Deal found 8/16

$504

Thu 9/176:00 am -

1 stop21h 55m

Wed 9/2311:00 am -

1 stop14h 59m

Deal found 8/14

$513

Fri 9/112:59 pm -

1 stop12h 01m

Thu 9/1711:00 am -

1 stop9h 58m

Deal found 8/18

$514

Fri 9/117:10 pm -

1 stop9h 40m

Fri 9/1812:00 pm -

1 stop13h 09m

Deal found 8/18

$514

Wed 9/93:30 pm -

1 stop13h 20m

Tue 9/1512:00 pm -

1 stop12h 09m

Deal found 8/18

$514

Sun 9/67:10 pm -

1 stop9h 40m

Thu 9/1712:00 pm -

1 stop11h 09m

Deal found 8/18

$514

Fri 8/283:30 pm -

1 stop13h 20m

Mon 8/319:15 am -

2 stops14h 24m

Deal found 8/18

$517

Last-minute flights from Reagan-National to Keflavik Intl
Discover last-minute flight deals from Reagan-National to Keflavik Intl. Data last updated August 19, 2026 and is based on user searches.

Wed 8/195:10 pm -

1 stop11h 40m

Tue 8/259:15 am -

2 stops28h 31m

Deal found 8/18

$494

Sun 8/236:00 am -

1 stop21h 55m

Tue 9/19:15 am -

1 stop10h 23m

Deal found 8/19

$485

Wed 9/96:00 am -

1 stop21h 00m

Wed 9/169:15 am -

1 stop29h 05m

Deal found 8/19

$495

Sun 9/137:46 am -

1 stop21h 04m

Thu 9/1710:00 am -

1 stop26h 55m

Deal found 8/18

$500

Tue 9/2212:55 pm -

2 stops39h 50m

Sat 10/310:00 am -

2 stops30h 09m

Deal found 8/19

$503

Thu 9/246:00 am -

1 stop21h 55m

Wed 10/79:15 am -

1 stop10h 25m

Deal found 8/19

$493

Thu 9/246:00 am -

1 stop21h 55m

Thu 10/112:00 pm -

1 stop12h 09m

Deal found 8/15

$499

Fri 9/256:59 am -

1 stop21h 46m

Mon 10/510:00 am -

2 stops30h 00m

Deal found 8/16

$502

Sun 9/277:10 pm -

1 stop9h 40m

Mon 10/512:00 pm -

1 stop11h 09m

Deal found 8/19

$501

Mon 9/2812:55 pm -

2 stops39h 00m

Mon 10/510:00 am -

2 stops30h 00m

Deal found 8/14

$478

Wed 9/3011:00 am -

1 stop17h 45m

Wed 10/79:15 am -

2 stops29h 29m

Deal found 8/17

$484

One-way flights from Reagan-National to Keflavik Intl
Search for one-way flight options from Reagan-National to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.

Mon 9/148:40 pm -

2 stops31h 15m

Deal found 8/17

$370

Sun 9/2012:55 pm -

2 stops15h 50m

Deal found 8/18

$374

Wed 9/238:40 pm -

3 stops31h 15m

Deal found 8/16

$390

Tue 9/14:20 pm -

1 stop12h 40m

Deal found 8/16

$398

Sat 11/143:55 pm -

1 stop9h 10m

Deal found 8/18

$412

Sun 10/112:25 pm -

1 stop13h 45m

Deal found 8/19

$413

Mon 8/314:45 pm -

1 stop9h 20m

Deal found 8/14

$414

Thu 9/246:00 am -

1 stop21h 55m

Deal found 8/17

$419

Find flight deals from Reagan-National to Keflavik Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$478 (Mytrip)
One-way from	$370 (Mytrip)
Popular in	December
Cheapest in	February
Average price	$684

Provider with most accurate pricing for Washington, D.C. Reagan-National-Reykjavik Keflavik Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Reykjavik Keflavik Intl flights.

Search Deals

From Washington, D.C. Reagan-National to Reykjavik Keflavik Intl

Search Deals

One-way flight from Washington, D.C. Reagan-National to Reykjavik Keflavik Intl

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($16 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Fri 10/16

3:30 pm-8:50 am

1 stop13h 20m

Reykjavik Keflavik Intl

Tue 10/20

10:00 am-10:34 pm

1 stop16h 34m

$499

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Sun 9/13

6:30 am-8:50 am

1 stop22h 20m

Reykjavik Keflavik Intl

Thu 9/17

10:00 am-12:14 pm

2 stops30h 14m

$500

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Sun 11/8

9:30 am-10:00 am

1 stop19h 30m

Reykjavik Keflavik Intl

Sat 11/14

12:00 pm-6:15 pm

1 stop11h 15m

$501

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Sun 11/8

9:30 am-10:00 am

1 stop19h 30m

Reykjavik Keflavik Intl

Mon 11/16

12:00 pm-6:15 pm

1 stop11h 15m

$501

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Fri 11/13

6:06 pm-10:00 am

1 stop10h 54m

Reykjavik Keflavik Intl

Mon 11/16

12:00 pm-7:15 pm

1 stop12h 15m

$501

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Fri 9/25

6:59 am-8:45 am

1 stop21h 46m

Reykjavik Keflavik Intl

Mon 10/5

12:00 pm-7:09 pm

1 stop11h 09m

$504

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Thu 9/17

6:00 am-7:55 am

1 stop21h 55m

Reykjavik Keflavik Intl

Wed 9/23

11:00 am-9:59 pm

1 stop14h 59m

$513

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Fri 9/11

2:59 pm-7:00 am

1 stop12h 01m

Reykjavik Keflavik Intl

Thu 9/17

11:00 am-4:58 pm

1 stop9h 58m

$514

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Fri 9/11

7:10 pm-8:50 am

1 stop9h 40m

Reykjavik Keflavik Intl

Fri 9/18

12:00 pm-9:09 pm

1 stop13h 09m

$514

Washington, D.C.Reykjavik

DCA Washington, D.C. Reagan-National - KEF Reykjavik Keflavik Intl

DCAKEF

Washington, D.C. Reagan-National

Wed 9/9

3:30 pm-8:50 am

1 stop13h 20m

Reykjavik Keflavik Intl

Tue 9/15

12:00 pm-8:09 pm

1 stop12h 09m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 21 resultsSorted by cheapest first

Compare providers for flights from Reagan-National to Keflavik Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Keflavik Intl in August.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Reagan-National with our price prediction graph.

DCA-KEF

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport?
Airlines like United Airlines fly from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport in about 13h 20m. The time it takes to get you to your destination can typically vary by up to . Washington, D.C. Reagan-National Airport and Reykjavik Keflavik Intl Airport are separated by a distance of 2784 mi.
Can I find deals for flights from Reagan-National to Keflavik Intl that include hotel bookings?
Yes. In addition to deals on Reagan-National to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Keflavik Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Keflavik Intl.
Can I find deals for business class flights from Reagan-National to Keflavik Intl?
Yes. Cheapflights offers flight deals from Reagan-National to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Keflavik

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$370+ Cheap flights from Reagan-National (DCA) to Keflavik Intl (KEF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Keflavik Intl with Cheapflights

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Cheap flight deals from Reagan-National to Keflavik Intl

Cheapest flights from Reagan-National to Keflavik IntlExplore the most affordable flight options available from Reagan-National to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.

Explore the most affordable flight options available from Reagan-National to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.

Best flights from Reagan-National to Keflavik IntlDiscover carefully curated flight deals from Reagan-National to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.

Discover carefully curated flight deals from Reagan-National to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.

Last-minute flights from Reagan-National to Keflavik IntlDiscover last-minute flight deals from Reagan-National to Keflavik Intl. Data last updated August 19, 2026 and is based on user searches.

Discover last-minute flight deals from Reagan-National to Keflavik Intl. Data last updated August 19, 2026 and is based on user searches.

One-way flights from Reagan-National to Keflavik IntlSearch for one-way flight options from Reagan-National to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.

Search for one-way flight options from Reagan-National to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.

Find flight deals from Reagan-National to Keflavik Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport that are best for you.

Compare providers for flights from Reagan-National to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Keflavik Intl in August.

Best time to book a flight from Reagan-National to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Reagan-National with our price prediction graph.

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport?

Can I find deals for flights from Reagan-National to Keflavik Intl that include hotel bookings?

How can I find direct flights from Reagan-National to Keflavik Intl?

Can I find deals for business class flights from Reagan-National to Keflavik Intl?

Traveling to a place near Reykjavik Keflavik Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Reagan-National to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Keflavik Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Reagan-National to Keflavik Intl by cabin class

Find flights from Reagan-National to Keflavik Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Keflavik Intl

Explore flights to Keflavik Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.

Reagan-National and Keflavik Intl flights

Browse other Reagan-National and Keflavik Intl flight options. Last updated on August 19, 2026.

Other flights from Reagan-National

Browse through other flights departing from Reagan-National. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.

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Cheapest flights from Reagan-National to Keflavik Intl
Explore the most affordable flight options available from Reagan-National to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.

Best flights from Reagan-National to Keflavik Intl
Discover carefully curated flight deals from Reagan-National to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.

Last-minute flights from Reagan-National to Keflavik Intl
Discover last-minute flight deals from Reagan-National to Keflavik Intl. Data last updated August 19, 2026 and is based on user searches.

One-way flights from Reagan-National to Keflavik Intl
Search for one-way flight options from Reagan-National to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.